Compound Name Calibrator levels
1000 ppb 500 ppb 200  ppb 100 ppb 10 ppb 1 ppb
Alpha-BHC 1% 4% 13% 21% 11% 104%
Hexachlorobenzene 2% 4% 32% 23% 42% 124%
Gamma-BHC 1% 4% 10% 27% 33% 116%
Beta-BHC 7% 10% 15% 11% 64% 97%
Delta-BHC 8% 16% 10% 25% 3% 65%
Heptachlor 0% 2% 10% 19% 18% 87%
Aldrin 1% 0% 7% 13% 20% 106%
Heptachlor epoxide 1% 8% 5% 10% 10% 19%
Oxychlordane 1% 6% 6% 10% 10% 56%
Trans-Chlordane 2% 9% 5% 9% 11% 12%
Endosulfan I 1% 7% 3% 10% 61% 49%
Cis-Chlordane 2% 9% 4% 5% 12% 26%
4,4’-DDE 1% 6% 5% 8% 6% 23%
Dieldrin 2% 7% 6% 6% 6% 19%
Trans-Nonachlor 1% 5% 5% 13% 16% 46%
Endrin 1% 6% 7% 9% 14% 40%
Endosulfan II 2% 9% 7% 14% 54% 88%
4,4’-DDD 3% 6% 10% 13% 25% 64%
Endrin aldehyde 14% 22% 28% 18% 65% 142%
Endosulfan sulfate 5% 10% 9% 10% 38% 88%
4,4’-DDT 5% 7% 14% 22% 33% 23%
Endrin ketone 2% 6% 7% 13% 39% 141%
Methoxychlor 5% 5% 15% 18% 29% 47%
Mirex 2% 6% 7% 8% 10% 21%
Average across all compounds 3% 7% 10% 14% 26% 67%
Table 5: Average percent RSD for all OCPs measured as a refit of calibrators to their respective standard curves across three separate calibrations performed on different days.